2009a-844 2016f-643 abnormalities aged aging biological biophysics congresses cosmetictechniques effectofradiationon lasertherapy lifesciences methods molecularaspects mouthmucosa oralmucosa pathology pathophysiology photosensitization physiologicaleffect physiology plastic science skin skincare skindiseases surgery therapy ultravioletradiation wr102 wr102c83422009 wr102y5672015 wt104e271994